Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: Electric Potential And Capacitance
Section: Chapter Questions
Problem 18P
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Question
![**Net Force Calculation on a Point Charge**
**Problem Statement:**
What is the net force on the \(-10 \mu C\) point charge?
**Diagram Explanation:**
The diagram illustrates a system of three point charges and their relative distances:
- There are three charges labeled as \(-10 \mu C\), \(-30 \mu C\), and \(40 \mu C\).
- The \(-10 \mu C\) charge is positioned 7 cm away from the \(-30 \mu C\) charge, 24 cm away from the \(40 \mu C\) charge, and 25 cm away from the \(-30 \mu C\) charge.
- The charges are positioned in such a way that they form a right triangle.
**Options Provided:**
1. 488 N
2. 613 N
3. 554 N
4. 24 N
5. 41 N
The numerical values will further help in calculating the net force using Coulomb's Law.
**Concept Explanation:**
To find the net force on the \(-10 \mu C\) charge, we use Coulomb’s Law, which states that the magnitude of the force \( F \) between two point charges is:
\[ F = k_e \frac{|q_1 q_2|}{r^2} \]
Where:
- \( k_e \) is Coulomb's constant (\( 8.99 \times 10^9 \, Nm^2/C^2 \))
- \( q_1 \) and \( q_2 \) are the magnitudes of the charges
- \( r \) is the distance between the charges
The net force is the vector sum of forces exerted on the \(-10 \mu C\) charge by the other two charges. This involves calculating each force individually and then combining them using vector addition principles.
**Answer Choices Analysis:**
Given the options, we would typically solve the problem step-by-step as outlined, making use of given measurements and fundamental principles of electrostatics.
**Interactive Element:**
To enhance learning, students might be prompted to attempt the detailed calculations and conceptual understanding to arrive at one of the provided answers.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff89c5e82-2527-49f4-96f0-d8c4ad99581b%2Fa1fbe8a2-d54e-4495-bcb3-5e75fa3382c4%2Fww2z1sb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Net Force Calculation on a Point Charge**
**Problem Statement:**
What is the net force on the \(-10 \mu C\) point charge?
**Diagram Explanation:**
The diagram illustrates a system of three point charges and their relative distances:
- There are three charges labeled as \(-10 \mu C\), \(-30 \mu C\), and \(40 \mu C\).
- The \(-10 \mu C\) charge is positioned 7 cm away from the \(-30 \mu C\) charge, 24 cm away from the \(40 \mu C\) charge, and 25 cm away from the \(-30 \mu C\) charge.
- The charges are positioned in such a way that they form a right triangle.
**Options Provided:**
1. 488 N
2. 613 N
3. 554 N
4. 24 N
5. 41 N
The numerical values will further help in calculating the net force using Coulomb's Law.
**Concept Explanation:**
To find the net force on the \(-10 \mu C\) charge, we use Coulomb’s Law, which states that the magnitude of the force \( F \) between two point charges is:
\[ F = k_e \frac{|q_1 q_2|}{r^2} \]
Where:
- \( k_e \) is Coulomb's constant (\( 8.99 \times 10^9 \, Nm^2/C^2 \))
- \( q_1 \) and \( q_2 \) are the magnitudes of the charges
- \( r \) is the distance between the charges
The net force is the vector sum of forces exerted on the \(-10 \mu C\) charge by the other two charges. This involves calculating each force individually and then combining them using vector addition principles.
**Answer Choices Analysis:**
Given the options, we would typically solve the problem step-by-step as outlined, making use of given measurements and fundamental principles of electrostatics.
**Interactive Element:**
To enhance learning, students might be prompted to attempt the detailed calculations and conceptual understanding to arrive at one of the provided answers.
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